Method of forming basket liners



y 1944- H. H. NIEDERAUER 2,353,182

. METHOD OF FORMING BASKET LINER Filed July 25, 1941 Hi1. 3 Z3 INVENTOR.

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Y I M f Y 17 ans 5m Fig. 16 of Moone.

Patented July 11, 1944 r 1";

UNITED STATES METHOD OF FOItDIING BASKET LINERS Howard HQ Nied erauer, mermaids. signor to Fruit & Produce Packing, Inc., In

dianapolis, Ind.,' acorporation Application July 23, wit-Serial No. 403.719 15 Claims. V cores-1') This invention relates to the process of. fabrieating so-call'ed one piece liners for baskets and the like.

The resulting product of this invention is functionally identical to that heretofore and now used j in the artsee Hiatt Patent No. 1,593,302 dated July 20, 1926.

The chief object of the present invention is to produce a liner of the general character identified above, so that the same may be more accur10 rately formed, may be more expeditiously formed and may b more economically formed.

The chief feature of the present invention consists in prefolding the stock prior to cutting the blanks therefrom and ofisetting the adhesive connected ends or joint relative to the sides of the folded collapsed liner.

The result of these arrangements is that the blank cutting and subsequent handling apparatus need not be as large in overall width to manufacture liners as are present machines forsuch purposes.

. Expressed otherwise, paper board handling. machines now too small-in width to. operate for liner fabrication as practiced in the industry may be-25.

used for liner fabrication when utilizing the present invention. Also, paper board handling machines now large enough in width to fabricate liners as at present practiced in the industry, can with the present invention havga double 3() production capacity when utilizingthe' present invention.

Reference is made to the Stern :Patent No. 1,867,286, dated July 12, 1932 and Moone patent, .No, 1,979,985, dated November 6, 19 34; Thesetwo patents are representative of machinesforming liners from roll stocksee Figs. 1;, 4; 5 and 15 of Stern and Fig. 1 of Moone. The resulting liner is illustrated in Figs. 12, 13 and'14 of Stern and 40 "This method of production as exemplifiedgby these patents has a stock waste of between,20% and 25% but which by careful control, depending upon the space allowed between, liners and; the trim allowed at the outer edges due to the cutting equipment used and the method of stripping away the waste, can, in exceptional cases, be reduced to 10 As stated, the average waste is between 20% and 25% of the total stock. j

When, however, the liners areproducedfrom.

waste from rol'l'production to 10%. A modified form of the invention; as described hereinafter, effects a 7% reductiomsothat the waste stock onl-y'amounts to 3%.

The present invention, therefore, reduces Waste of stock: from a maximum of-3 0% to an average --of-10% and another form reduces such waste .l10.;3%:-

While this stock saving is a most important advantage, it, by no means, is thesole advantage. Another advantage incident to practicing either form of the invention is-that all liners ,are'accurately assembled because only a small or short flap is manipulated for adhesive or like ing. Such is not the case, when comparatively along-flaps, suchas illustrated in- Fig. 12 of Stern areutilized.- "For one-bushel capacity basket "liner; themaximum chord thereof is approxi- .mately' 54".

The radial depthis approximately 11."; The two end fiaps have maximum chords of approximately 'I4' and the midportion lapped thereby has a. maximum chord ofapproximately '27", when theliner is of seal joint type.

Inthe present:invent ion; 'forthe -same size liner; the centralportiomhas the same chord :of approximately27-and a radial depth of approximatelyll' The shortfiap has a maximum chord of approximately 5" while the larger end flap ,hasa maximum chord of approximately employed, andjpermitsgreater speed when pasted.

by machine.

Another ttimejsaveris that folding a 5" flap .ofiers less'wind .resistancethanfolding a 14" flap. In addition :the possibility of departure or gshifting incident toifsuch resistanceis materially reduced with the five inch flap folding arrangements.

While the abovetrefers specifically to liners of the 'one 'bushehsize; the samemethodof fabrication would'applyrto liner-s of the. one-half bushel ,sizeor for other types and sizes of similar con- ;tainers. g

. As previousl set-forth; machines now too small .for liner production can produce liners when r utilizing this invention; Alsomachines new large I2 to the edge I3 is approximately 51 width of the folded sheet represented by the line enough to produce one-piece liners can, when utilizing a modified form of the invention, simultaneously produce two liners or thereby increasing plant capacity 100%.

Having thus sufficiently referred to the prior art, as to machines, process and product, and to the advantages and chief features of the present invention, reference will be had to the following:

The full nature of the invention will be understood from the accompanying drawing and the following description and claims:

In the drawing, Fig. 1 is a representation 0 an elongated portion of the strip supplied from a roll to a machine and previous to operationthereon, the dotted line parallel to the side edges of the strip indicating the initial preliminary or prefold line and the arcuate full lines illustrating the subsequently formed blanks, the radial dotted lines included between such arcuate lines indicating crease or score lines formed during the cutting operation or later a's'de'sired.

Fig. 2 is a similar view of a modified form of the invention, this View illustrating the double together with the following description complete- 1y disclose the invention sufiiciently for persons skilled in the art to practice the same Without any difficulty whatsoever.

Reference first will be had to Fig. 1. In this figure It] indicates a sheet of paper board material of the proper weight suitable for one-piece liner fabrication. This sheet I0 as it comes from the roll-is folded along the line II. This forms the main portion A and an overlapping portion B. The dot-dash line C indicates the edge I2 when the part B is folded over the part A.- All this occurs preliminary to any blank cutting, et

-cete1'a, and this is a continuous folding operation so long as the strip In is supplied to the machine for liner fabrication. The 'strip then passes between the cutting rolls.

In Fig. 1 the width of the sheet from the edge The I I or folded line and the edge I3 is 31". The cutting equipment, therefore, need only be 31 .wide.

In other words, a machine having cutting cylinders 36" in widthcan produce liners, whereas with the Moone and Stern machines, such a 36 width cutting machine could not produce liners.

by the processes disclosed therein.

- If it be assumed the folding has been completed,

then it will be noted the area or width of the strip between the line Cand-edge I3 exposes that portion of the sheet that is to receive glue and that is to be creased in addition to the previous folding or crease formation.

The cutting rolls, as a sheet passes through, simultaneously cut the arcuate edge 20 and 20a 1 and the arcuate edge 2| and extension 2Ia theremultaneously provide the radial crease 23 adja as to shape and with the long flap 40 folded down on the central or intermediate flap 4| so that neither requires further attention.

While the invention has been described as being formed from a strip from the roll and by means of. cutting cylinders, the aforesaid may be formed from the sheets of the desired 'size cut by rotary cutting cylinders or such and mm and the edges I2l and IZIir.

the fiat to the fruit packer and the like. fruit packer when desiring to utilize the liner sheets or the strip may be cut by intermittent cutters conventional to the paper board fabrication industry.

After the waste has been stripped from the blank, the prefolded and partially formed blank then enters the folding equipment. This folding equipment folds the short flap 42 on the crease line 23 so as to lap the edge In of the portion 40. The adhesive may be applied to a portion immediately adjacent to the edge 22 following blank formation in partial prefolded condition or in the folding of the short flap 42, the portion immediately adjacent edge 22 may engage a gluing roll and have glue applied thereto. Upon the completion of the infolding movement of this sheet flap, the glued area overlaps the edge I2a of the portion 40 and the adhesive joint is effected by pressure application through means common to the paper board machine industry.

If desired, the adhesive may be applied to the portion adjacent to the edge I2a instead of edge 22, this being done after waste has been stripped from the blank and before short fiap 42 is folded.

The article as thus fabricated is discharged in the collapsed relation and completely fabricated, and the desired number may be collected in one bundle and packaged for shipment in The need only take one fabricated blank, open it,

'insert it into the bushel basket or packing by the dotted lines Illa and Illb. This forms a central portion A and two sideportions B and B. The portion B has the edge l I2. The

' portion B has the edge II3. When the portion Bis folded upon the portion A on the line II la the edge II2 then coincides with the "dot-dash line C. When the portion B is folded upon the dotted line or crease line Illb the edge II3 then coincides with the dot-dash line C. These lines C and C indicate the position of these side edges only. This leaves exposed the central portion A between the'lines C and C.

" The cutting dies then form the edges I20 They also form the radial edge I22 and'th'e side edge ll2a is the side edge of the strip. 1 The radial crease I23 may be applied to the blank sinfultaneously with the cutting thereof or by a subsequent operation. The former'is preferred since it merely means the inclusion of a scoring or creasing die in the cutting cylinders. The blank thus formed includes the long flap I40 lapping the central flap MI and projectingtherefrom is the short flap I42.

Referring to the upper half portion of Fig. 2, it'will be'noted that another series of liner blanks is being simultaneously formed with the first mentioned series at the lower half side of the sheet but these blanks are reversely positioned with respect to the first mentioned series of blanks and they are similarly designated'b y numerals of the prime series except that herein the edge ll3a corresponds'to the edge l22a.

It thus will be noted that not only do the several blanks in each series interfit or nest, as it were, relative to the adjacent blanks but that the adjacent ends of oppositely positioned blanks interfit or nest, as shown between the lines C and C. This is one of the reasons when blanks are formed two-up instead of one-up, as in Fig. 1, the waste is reduced from the maximum of to 3%. After the blanks have been thus formed and creased as at I23 and I23, these series of blanks are handled in substantially the same manner as that previously described with reference to the handling of the blanks formed in Fig. l, with this exception that the parts of the machine are of necessity reversed for handlingthe prime series of blanks with respect to the position of the parts handling the lower half series of blanks illustrated in Fig. 2. Or, if desired, the prime'series of blanks may be allowed to collect in a pile and later reversed and fed into same machine used for folding and gluing the blanks of the first mentioned or lower half series of blanks.

The width of the strip of paper board shown in Fig. 2 is approximately 95 The width between the lines lla and lb is 54 /2". A paper board fabricating machine having a 56 length of cutting cylinder which is a conventional length, and which could fabricate and would be necessary to fabricate the blanks in the Stern and Moone patents now, by reason of the prefolding, can be utilized to simultaneously form two blanks in the same time that heretofore was required to form but one blank according to the Stern and Moone invention process.

The several advantages of both forms of the invention have been set forth in sufficient detail initially hereinbefore so that no further reference, it is believed, need be made, except that reference is had to Fig. 3 wherein the completed blank in its collapsed relation as completely fabricated is illustrated.

While the invention has been illustrated and described in great detail in the drawing and foregoing description, the same is to be considered as illustrative and not restrictive in character.

The several modifications described herein as well as others which will readily suggest themselves to persons skilled in this art, all are considered to be within the broad scope of the invention, reference being had to the appended claims.

The invention claimed is:

1. The method of forming a one-piece, paper board liner including initially folding one side portion of the paper board upon itself, simultaneously arcuately cutting the board layers to form therefrom a pair of lunar segments and an arcuate liner blank longer than the segment and with a fold therein, bias creasing the board intermediate the non-lapped portion to form a triangular-like flap, and then folding the flap onthe biased crease to lap the non-lapped portion of the board, the biased crease being so lo- 'cated that the flap laps the free end of the initial lapping portion for subsequently securing the free end and flap together.

2. The method of forming a one-piece paper board liner including initially folding unequally one side portion of the paper board upon itself,

- simultaneously arcuately cutting the unequal width board layers to form therefrom a pair of superposed waste lunar segments and an arcuate liner blank with a fold therein, biased creasing the board intermediate the resultant non-lapping portion to form a triangular-like flap and then folding the flap on'the biased crease to lap the unlapped portion of the board, the biased crease Width board layer to form therefrom a pair of superposed waste lunar segments and an arcuate liner blank with a fold therein, biased creasing the board intermediate the resultant non-lapping portion to form a triangular-like flap and then 'folding the flap on the biased crease to lap the unlapped portion'of the board, the biased crease being so located that the flap and the free end of the initial lapping portion for lapping association for subsequently securing the free end and flap together by the initial folding being sufficiently remote from one edge of the board so that the initial lapping portion when out forms a flap of a length at least three times the length of the resulting crease defined flap.

4. The method of forming a one-piece, paper board liner including initially folding unequally one side portion of the paper board upon itself, simultaneously cutting the unequal width board layers to form therefrom a liner blank with a fold therein, creasing the board intermediate the resulting non-lapped portion to form a fiap, and then folding the flap on the crease to lap the non-lapped portion of the board and the free end of the initial lapping portion for securing the free end and flap together, the cutting substantially being upon two concentric arcs and upon a. connecting line therebetween inclined to a median radius in the flap to form the free edge thereof, the creasing being radial and at one end terminating adjacent the innermost end of the edge line.

5. In a method of forming a one-piece, paper board liner the initial step of folding the board adjacent but sufficiently offset from the middle thereof, to provide an unlapped portion of minor width, then simultaneously cutting the board upon two substantially concentric arcs of considerable radius and from the folded edge of the board, and in the unlapped portion upon a line inclined to a radius to the arcs and directed from the greater length to the lesser length arc, and radially creasing the arc and inclined line defined blank adjacent the line and lesser arc junction to form a foldable short flap.

6. A method as defined by claim 5, characterized by the cutting and creasing occurring simultaneously.

7. In a method of forming a one-piece, paper board liner the initial step of folding the board adjacent but sufiiciently offset from the middle thereof, to provide an unlapped portion of minor width, then simultaneously cutting the board upon two substantially concentric arcs of considerable radius and from the folded edge of the board and in the unlapped portion upon a, line inclined to a radius to the arcs and directed from the greater length to the lesser length arc, and

radially creasing the arc and inclined line defined blank adjacent the line and lesser arc junction to form a foldable short flap, the resulting short flap and remainder of the unlapped blank being substantially of isoceles triangle shape and the crease being substantially coincident with the bisector of the unlike angle.

8. A method of forming a one-piece liner from paper board including initially folding opposite side portions of the board upon the central portion thereof leaving an unlapped portion therebetween slightly less than each lapped portion, cutting the board from folded edge to folded edge along two sinuous lines substantially equidistant to form a blank sufiicient for two end-to-end connected liners, and cutting the intermediate unlapped board portion upon a division line inclined to the folded edge to form two liner blanks.

9. A method of forming a one-piece liner from paper board including initially folding opposite side portions of the board upon the central portion thereof leaving an unlapped portion therebetween slightly less than each lapped portion, cutting the board from folded edge to folded edge along two sinuous lines substantially equidistant to form a, blank sufiicient for two end-to-end connected liners, and cutting the intermediate unlapped board portion upon a division line inclined to the folded edge to form two liner blanks and creasing the unlapped portion of each liner blank along a line inclined to the adjacent folded edge,

the crease line-inclination being approximately half that of the division line inclination.

10. A method as defined by claim 8, characterized by the sinuous and division line cuttings occurring simultaneously.

11. A method as defined by claim 9, characterized by the sinuous and division line cuttings and the two crease line creasings occurring simultaneously.

12. A method of forming identical one-piece liners from paper board including initially folding the board upon two parallel side edges to leave a central unlapped portion approximately as wide as each lapped portion, and then sinuously cutting such folded board from edge to edge and on a division line biased to both folded edges and in the central unlapped portion to simultaneously form two identical reversely positioned one-piece arcuate liner blanks.

13. A method of forming identical one-piece liners from paper board including initially folding the board upon two parallel side edges to leave a central unlapped portion approximately as wide as each lapped portion, and then sinuously cutting such'folded board from edge to edge and on a division line biased to both folded edges and in the central unlapped portion to simultaneously form two identical reversely positioned one-piece arcuate liner blanks, and creasing the unlapped portion of each liner blank along a line inclined to the adjacent folded edge, the crease line inclination being approximately half that of the division line inclination.

14. A method as defined by claim 12, characterized by the sinuous and division line cuttings occurring simultaneously.

15. A method as defined by claim 12; characterized by the sinuous and division line cuttings and the two crease line creasings occurring simultaneously.

HOWARD H. NIEDERAUER. 

